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LINE VOLTAGE | Yes/No | Hi/Lo Line | Nom. | Unit | Notes |
US 120vac/60Hz | Yes | 120 | Vrms | Normal Operation | |
EU | No | 230 | Vrms | Normal operation, MOMS required | |
Asia 100vac/50Hz | No | 100 | Vrms | Normal Operation | |
Parameter | Specification |
| Unit | QA Test | Conditions | Notes |
| Limits | |||||
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Amp Section |
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Type (Class AB, D, other) | D |
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Load Impedance (speaker) | 4 | Ohms |
| Nominal | ||
Rated Output Power | 300 Watts |
| Regulated 120 V line | 5% tollerance applies | ||
THD@ Rated Power | 1 % |
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| 22k filter, 50Hz | 300W +/- 5% | |
THD @ 1 Watt | 0.5 % |
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| 22k filter, 50Hz |
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DC Offset | undefined | < 20 | @ Speaker Outputs |
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Damping factor | 20 |
| N/A | > 15 |
| measured at 50 Hz |
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Input Sensitivity |
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Line/Hi Level Input Phase | N/A |
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Line Input | 370 mV mVrms |
| 300 W @ 50Hz | 1 input driven | ||
Speaker/Hi Level Input | N/A |
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Signal to Noise |
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100 dBA |
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70 dBr |
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| relative to rated power | 22k filter | ||
SNR rel. | 60 dBr |
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| relative to 1W Output | 22k filter | |
Residual Noise Floor | 2 mVrms |
| Volume @max, using RMS |
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| reading DMM/VOM (or A/P) |
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Residual Noise Floor | 1 mVrms(max) |
| Volume @max, w/ A/P Swept |
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| Bandpass Measurement (Line |
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| freq.+ harmonics) |
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Input Impedance |
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Line Input | 10 k ohms |
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Speaker/Hi Level Input | N/A |
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Active Filters |
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Low Pass (fixed or | FIXXED |
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variable) |
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Frequency | 130 Hz |
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Slope | 24 dB/Octave |
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Q | Butterworth |
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Subsonic filter (HPF) | fixed |
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Frequency | 35 | Hz |
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Slope | 12 dB/Octave |
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Q | 1.2 |
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Line Out Filter (HPF) | NONE |
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Frequency |
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Slope |
| dB/Octave |
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Q |
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Friend Circuit | FIXXED |
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Frequency | 66 Hz Hz |
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| notch filter |
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Slope | 6 dB/Octave |
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Q | 1.2 |
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Video Boost | NONE |
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Boost |
| dB |
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Range |
| Hz |
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Special filter | RABOS |
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Switches |
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Main Power ON/OFF | YES |
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Type | rocker |
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| Located on amp plate | ||
Rabos ON/OFF | YES |
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Type | mini togle |
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| Located on amp plate |
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Polarity Switch | YES |
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| "Off": 0°; "On": 180° |
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Type | mini togle |
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| Located on amp plate |
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Limiter (yes/no) | YES |
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| compressor and limiter |
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